/* pe06.c -- caculate the amount of water molecule */
#include <stdio.h>
int main(void) {
  double mass;
  long double amount;
  printf("Please enter the mass of water(in quarts): ");
  scanf("%lf", &mass);
  amount = mass * 950 / 3.0E-23;

  printf("The amount of water is %Le\n", amount);

  return 0;
}
